Debugging a non-terminal task

In order to debug a transaction running unattached to a terminal, you have to set up both:
Option 8.2 (to identify the program/transaction to debug), and
Option 8.9 (to identify the debugging terminal).

From Option 8.2:

Set the Terminal ID to NONE (actually type in the word NONE)

Identify the non-terminal transaction in Task ID

Identify the non-terminal program in Program Name

Set the Halt Offset to START

From Option 8.9:

Set the Debugging Terminal ID to THIS (identifies the terminal you are signed on to)